<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div {
            width: 200px;
            height: 200px;
            background-color: #fff;
            margin: auto;
            border-radius: 50%;
            line-height: 200px;
            text-align: center;
            border: 1px solid #ccc;
            box-shadow: 20px 20px 20px #ccc inset;
        }

        div:hover {
            box-shadow: -20px 20px 20px 1px rgba(0, 0, 0, 0.5);
        }
    </style>
</head>

<body>
    <div>circle</div>
</body>

</html>